This planet had a nighttime temperature that reached 120° below zero. The planet was capable of supporting life despite this, and it was also rich in a soft yellow magneticore with highly unusual properties.

In 2266, the USS Enterprise was on a specimen-gathering mission to this planet. While there, they brought aboard one of the dogs native to the planet. Also, a member of the landing party became covered with the yellow magnetic ore, which damaged the transporters and caused the device to divide transporter signals. (TOS: "The Enemy Within")